M & D Plumbing, Heating & Air Conditioning

I was recommended to use this company by Dunkirk Boiler Co. David Berger is the sole proprietor of this business and despite being paid over $8,000 left my system in worse shape then it was in before he started to work on my heating system. Additionally he left parts of the system disassembled all over the floor of my boiler room that were installed before he started. When I called him to complete his work he became nasty and blocked my phone number.

This is a one man business, he works out of his house and his Mother answers his calls. I am in the process of filing complaints with Town of Oyster Bay against his license. He performed inferior work on my gas condensing boiler and since then it has been emitting natural gas and carbon monoxide and is putting my family and neighbors at risk of death or serious injury.

This man could not even provide a simple receipt for payment.

DON'T USE IF YOU VALUE LIFE & PROPERTY

David did a great job. I needed a new heating system, connections on the water heater, and air conditioning installed. He was very efficient and got the job done in a timely manner with fair rates. I am so pleased with the job he did. A 👍

Late last night my downstairs central AC started leaking all over inside the house. Called and spoke w/David. He came 1st thing this am and fixed the leak for me by draining what should've been drained once a year, (I now know!) He even checked all my vents and changed my filters in my vent upstairs so I don't end up w/even bigger problems. He really went above and beyond, completely last min and I couldn't be more appreciative. I learned he def knows his stuff and will absolutely, 100% call him for any future maintenance or work needed! Thanks again!!!

David was professional and extremely helpful.

Amazing service. Top quality. Highly recommended.